Opposite of numpy.delete

Question

I have a numpy array which looks like: [3,65,7,83,2,4] and I want to keep indices [1,3,5]. Which would give me [65, 83, 4]. Is there a way to do this in Numpy?

This would essentially be the opposite of the numpy.delete function.

Answer 1

Use fancy indexing:

>>> a = np.array([3,65,7,83,2,4])
>>> a[[1, 3, 5]]
array([65, 83,  4])